Heavy hadrons spectra on lattice using NRQCD

Abstract

Comparison of radial excitation energies to masses show that the velocity of b quark is very non-relativistic in bottomonium states. In a mixed system like charmed B meson, the b quark has less velocity than it has in bottomonium states and in strange B meson it is even slower. So one can use NRQCD for the b quark in those systems. Using overlap and hisq action for the s and c quarks and NRQCD for b quark we simulated spectra of charmed and strange B mesons and also few other baryons.